Answers for "test if var is undefined javascript"

19

javascript check if not undefined

if (typeof myVar !== "undefined") {
    console.log("myVar is DEFINED");
}
Posted by: Guest on October-23-2019
0

nodejs check if variable is undefined

if ( typeof query !== 'undefined' && query )
{
  //do stuff if query is defined and not null
}
else
{

}
Posted by: Guest on December-25-2020

Code answers related to "test if var is undefined javascript"

Code answers related to "Javascript"

Browse Popular Code Answers by Language